The atmospheric nitrous oxide mixing ratio has increased by 20% since 1750. Given that nitrous oxide is both a long-lived greenhouse gas and a stratospheric ozone-depleting substance, this increase is of global concern. However, the magnitude and geographic distribution of nitrous oxide sources, and how they have changed over time, is uncertain. A key unknown is the influence of the stratospheric circulation which brings air depleted in nitrous oxide to the surface.
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Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/trends-and-seasonal-cycles-isotopic-composition-nitrous-oxide-1940
[2] http://admin.indiaenvironmentportal.org.in/category/author/s-park
[3] http://admin.indiaenvironmentportal.org.in/category/author/p-croteau
[4] http://admin.indiaenvironmentportal.org.in/category/author/k-boering-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/nature-geoscience
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oxides-nitrogen-nox
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/australia
